3B5N

Structure of the yeast plasma membrane SNARE complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.206 

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This is version 1.2 of the entry. See complete history. 

Literature

The Structure of the Yeast Plasma Membrane SNARE Complex Reveals Destabilizing Water-filled Cavities.

Strop, P., Kaiser, S.E., Vrljic, M., Brunger, A.T.

(2008) J.Biol.Chem. 283: 1113-1119

  • DOI: 10.1074/jbc.M707912200

  • PubMed Abstract: 

    • SNARE proteins form a complex that leads to membrane fusion between vesicles, organelles, and plasma membrane in all eukaryotic cells. We report the 1.7A resolution structure of the SNARE complex that mediates exocytosis at the plasma membrane in the ...

    SNARE proteins form a complex that leads to membrane fusion between vesicles, organelles, and plasma membrane in all eukaryotic cells. We report the 1.7A resolution structure of the SNARE complex that mediates exocytosis at the plasma membrane in the yeast Saccharomyces cerevisiae. Similar to its neuronal and endosomal homologues, the S. cerevisiae SNARE complex forms a parallel four-helix bundle in the center of which is an ionic layer. The S. cerevisiae SNARE complex exhibits increased helix bending near the ionic layer, contains water-filled cavities in the complex core, and exhibits reduced thermal stability relative to mammalian SNARE complexes. Mutagenesis experiments suggest that the water-filled cavities contribute to the lower stability of the S. cerevisiae complex.

    Organizational Affiliation: 

    Howard Hughes Medical Institute and Department of Molecular and Cellular Physiology, Stanford University, Stanford, California 94305, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Synaptobrevin homolog 1
A, E, I
61Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SNC1
Find proteins for P31109 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P31109
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein SSO1
B, F, J
69Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SSO1
Find proteins for P32867 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P32867
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Protein transport protein SEC9
C, G, K
70Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SEC9 (HSS7)
Find proteins for P40357 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40357
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Protein transport protein SEC9
D, H, L
64Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SEC9 (HSS7)
Find proteins for P40357 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40357
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.206 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 76.956α = 90.00
b = 48.113β = 97.77
c = 110.265γ = 90.00
Software Package:
Software NamePurpose
Blu-Icedata collection
DENZOdata reduction
PHENIXrefinement
PDB_EXTRACTdata extraction
PHASERphasing
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-11-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description